from flask import current_app, jsonify
from flask import g
from flask import session


from info.utilities.response_code import RET


def set_rank_class(index):
    if index == 1:
        return "first"
    elif index == 2:
        return "second"
    elif index == 3:
        return "third"
    else:
        return ""


import functools
# 用装饰器实现封装
# 传入参数是试图函数名
def user_login_data(view_func):
    @functools.wraps(view_func)
    def wrapper(*args, **kwargs):

        # 1.实现需要装饰的函数的内容逻辑
        user_id = session.get("user_id")
        user = None
        from info.models import User
        if user_id:
            try:
                user = User.query.get(user_id)
            except Exception as e:
                current_app.logger.error(e)
                return jsonify(errno=RET.DBERR, errmsg="查询用户对象异常")

        # 借助g对象临时保存user
        g.user = user

        # 2. 原有函数的逻辑
        result = view_func(*args, **kwargs)
        return result

    return wrapper
